My SR20DE 240SX swap

[nissantuner22]

It all began with yankin the ol KA. You will be missed my low torque friend.




Than came the cleansing of the engine bay, and installing of the SR








Here it is, just lined up on the motor mounts. Which was pretty easy actually.





And heres the finished product, Rigged up intake to clear the radiator hose and all, compliments a dodge neon radiator hose that was trimmed. Still needs some work, but it runs good off the KA harness and SR ECU.

[Vosko]

???

you just put in a smaller displacement engine, the ka has more torque

i'm confused

[simplyxlost]

yeah i think dumb. but he probably things "jdm factor yo!"

[180onthebricks.]

hes problably putting it in to get a high-rev engine

[Mike_S13]

pretty stupid... but hey its your car. It'll probably run a bit slower too and it won't pass smog.

[s13daver]

hmm i like it because no one does this for obvious reasons, only way you can turn this swap into "jdm yo" is building that sr20de complete with ITB's. and making at least 150-170whp.

[nissantuner22]

Thanks for the many positive comments. The buildup is currently on hold due to college, but during the summer it will recieve the following modifications.

Custom ITB's
Custom header
Greddy pullies
S4 cams
Stand alone

I'm toying on the ideaing of upping the compression to 10:1 as well. The S14 motors come with that, along with VTC, and crank out 160 hp. I figure with the added compression and previously listed mods, it will make for a spirited, high revving motor.

I took the KA out due to its long stroke. The mods needed to make it a more square motor, coupled with its high milage and oil burning problems, made the SR20DE motor which I sourced for 400 dollars a much better solution. I didn't swap it just to be JDM, I've owned FWD SR20DE's for years and enjoy the smooth, revness of the motor.

To the e-thugs, I want fries with that.

[sdtouge]

Originally Posted by nissantuner22

Thanks for the many positive comments. The buildup is currently on hold due to college, but during the summer it will recieve the following modifications.

Custom ITB's
Custom header
Greddy pullies
S4 cams
Stand alone

I'm toying on the ideaing of upping the compression to 10:1 as well. The S14 motors come with that, along with VTC, and crank out 160 hp. I figure with the added compression and previously listed mods, it will make for a spirited, high revving motor.

I took the KA out due to its long stroke. The mods needed to make it a more square motor, coupled with its high milage and oil burning problems, made the SR20DE motor which I sourced for 400 dollars a much better solution. I didn't swap it just to be JDM, I've owned FWD SR20DE's for years and enjoy the smooth, revness of the motor.

To the e-thugs, I want fries with that.

YESSSSSSS!

[lazyjoe247]

Ive been hacing problems getting thread up in the beginners section so ill post here since has a something to with sr20. Whats the difference between an sr20 and ka? Is the sr20 japan spec and ka american spec? And what models bring either engine?

[quach]

the KA24E/DE are the american 240sx engines. they are 2.4 liter N/a engines that make about 150hp and 160lb/ft torque. this engine can be found in alot of nissans (nissan hardbody 2wd truck)

The SR20DE/DET are engines that can be found in japanese S chassis cars (180sx, silvia). basically they are 2.0 liter engines with a shorter stroke than the KA, meaning that they can rev more freely and happily, and the DET engines were built to withstand boost. n/a i think they make 160hp and lower torque numbers than the KA. turbos (DET) make 220-250 hp. the sr can be found in alot of american cars too (sentra se-r)

There's a world of differences between these two engines, the real point of it all is that they were both offered in S chassis cars and can be interchangable.

[brainfood]

I thought you needed to swap the harness? You said you were running it on the ka harness with sr20 ecu does this only work with the s13-s13 swap since the s14 is obd2 and the added wires of the vtc? Curious I wouldnt mind an sr20de swap in my s14 lighter, more rev happy, much easier to make n/a power with. I like it. Also I am guessing you used the sr trans.

[Mike Peters]

Originally Posted by nissantuner22

Thanks for the many positive comments. The buildup is currently on hold due to college, but during the summer it will recieve the following modifications.

Custom ITB's
Custom header
Greddy pullies
S4 cams
Stand alone

I'm toying on the ideaing of upping the compression to 10:1 as well. The S14 motors come with that, along with VTC, and crank out 160 hp. I figure with the added compression and previously listed mods, it will make for a spirited, high revving motor.

I took the KA out due to its long stroke. The mods needed to make it a more square motor, coupled with its high milage and oil burning problems, made the SR20DE motor which I sourced for 400 dollars a much better solution. I didn't swap it just to be JDM, I've owned FWD SR20DE's for years and enjoy the smooth, revness of the motor.

To the e-thugs, I want fries with that.

you realize that for the price of those itb's and cams you could have overhauled your ka and put a turbo on it?

guess im just about performance per dollar, but for 400 bux since your ka needed an overhaul thats nota bad deal, however i wouldnt be dumping money into a n/a sr, or a n/a ka. but whatever floats your boat.

[aaronlosey]

hmmmmmm..... i try not to knock on peoples projects, but i don't agree with this one. its not common and doesn't make sense for a reason.

[nissantuner22]

Im going to try to keep this technical

In S13's, use the KA harness. Only a few wires need to be modified. Used in conjunction with the SR20DE ecu, it runs great. KA ecu will run like garbage.

You can swap the motor into an S14. In that case, as you stated, I would use the SR harness, due to the inherient additional wires. Also, I would use the SR ecu.

Turboing the KA, eh, it doesnt fit well into my college lifestyle. The costs involved in keeping up with it, doesnt factor in. A N/A motor is a better solution to the daily driving. As I stated earlier, the squareness of the SR makes it a better build canidate. That, and the ability to swap a VE head on it. Should be fun.

[sdtouge]

i for one like it alot.

[FD3S_pilot]

Yea at least he installed it HIMSELF...most kiddies out there
would PAY for a install.

I say good job man!!!

[defiantfc3s]

N/A SR, is different and seems pretty cool to me. ITB's will look nice!

[brainfood]

The itb kit isnt too terribly priced, stand alone and this kit would make decent power
http://www.tweakit.net/shop/product_...roducts_id=120
and then they have a turbo manifold that bolts to the itbs if you decide to go turbo later.

[nissantuner22]

Who pays people for installs, whats the fun in that. The fun of modifying cars, is doing it yourself.

I've seen those ITB's before, thats definitly an option, along with jensen i believe? I forget the name of the other company. The ability to use Bosch injectors is nice too, there cheap compared to sr20det sidefeeds ugh.

[eastCoastMayhem]

looks like youve got some good plans man, ITB's sound amazing too. Any idea what stand alone your going to use?

[nissantuner22]

Im leaning towards the haltech. A fellow I know is running ITB's with it, with great results. The key being to make sure theres equalized vacuum between all cylinders for idle quality.

My son and I are in the middle of the swap. The KA harness works but the throttle position sensor clip is not the same on the SR engine. Can you tell me how you took care of this problem? Needing assistance. Any help is appreciated.

Robert

[INFO]

Originally Posted by rmusi

My son and I are in the middle of the swap. The KA harness works but the throttle position sensor clip is not the same on the SR engine. Can you tell me how you took care of this problem? Needing assistance. Any help is appreciated.

Robert

S13 to S13?
http://store.driftingshop.com/srswdvdbyrsh.html

As I am a little confused and a rookie with Nissans, the ka24e to sr 20 swap, will this DVD cover this or is there something on the web I can look at?

[djblizza]

Im glad you did this swap I also am looking into doing this swap into my 90 240sx to replace my tired ka24e (240k original motor) So I have a question for you... I can get a 93 Infini G20 sr20de for $200 and I wanted to ask you if its possible to mate the jdm rwd 5-speed tranny to the fwd sr20de usdm motor? I would like to use the usdm motor because its a legal swap in my state and Ill have all the us emissions componts and I too like the idea of having a high reving na motor in my car.